Coal chute



H. STEINBACH.

COAL CHUTE; APPLlCATiON FILED NOV. 5, I919.

Patented May 16, 1922.

UNITED stares earner easier.

HENRY STEINBAGH, OF SUB/ANTON, PENNSYLVANIA, ASSIGNOR TO JOHN J. STEIN- IBACH, OF SCRANTON, PENNSYLVANIA.

GOAL CHUTE.

Specification of Letters Patent.

Patented May 16, 1922.

Application filed. November 5, 1919. Serial No. 335,967.

To all whom it may concern:

Be it known that I, HENRY STEINBAOH, a citizen of'the United States ofAmerica, and resident of Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Coal Chutes, of which the following is a specification.

This invention relates to chutes for coal while being treated in coal breakers and the said invention has for its object the provision of novel means whereby coal in its travel from screens or rollers to the coal assorting pockets may be retarded so that it will not gain undesirable velocity in its movement through the chutes.

As now made, these chutes are on an incline and the coal often gravitates with such speed as to impair and disintegrate thecoal when the lumps impact each other or the sides of the chutes when turning the angles or corners of said chutes; The coal thus impaired results in a great deal of waste and it is this that the inventor seeks to minimize.

An object of this invention is to provide novel means which may be attached to chutes now in use or which may be constructed and installed when the new chutes are built, the said device having novel means for attaching the retarding device to said chutes so that the cost will not be large compared with the great value of the improvement.

With the foregoing and other objects in View, the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, and in which- Figure 1 illustrates a view in perspective of a fragment of the chute with the invention applied thereto;

Figure 2 illustrates a longitudinal sectional View of a fragment of a chute; and

Figure 3 illustrates an end view thereof.

In these drawings 5 denotes a chute and 6 the sectional linings or plates therein, having upstanding sides which are attached to the sides of the chute by fastenings 7 such as rivets or the like.

The coal retarding device comprises a plate 8 which is transversely corrugated as shown at 9, the undulations of the corrugations being high or low according to the type of coal being treated and the sizes which are to pass down the chutes.

The lower end of the plate 8 is straight and forms a flange which may be secured to the inturned flanges 10 of the sides of the lining plates, and the undulated plate is secured to these flanged sides preferably by rivets 11, it being shown in the drawing that the concaved portions of the plates rest on the flanges of the sides so that these concaved portions may be secured to the flanges to insure a strong and durable construction. in practice, it has been found unnecessary to have a number of rivets which equal the concavities of the plates; in fact it is suflicient under most conditions to secure the plate at every alternate concaved portion, but that is a matter that is within the discretion of the purchaser or user and I do not wish to be limited with respect to this feature.

The height of the corrugations would of course depend upon the pitch of the chute and the coal which would travel down the chute and that is also a matter within the discretion of the manufacturer or user.

This device should not be regarded as a separator but is a part of the distributing chute through which the coal is directed after it has been fully treated in the pickers and separators.

I claim I In a coal retarding attachment for chutes, plates having corrugations extending transversely, side plates having inturned lower edges forming flanges to which. the first mentioned plates are secured, the'said plates and side plates being adapted to be secured in a chute at different pitches for offering resistance to the passage of material down the chute, according to the pitch of the chute.

I HENRY STEINBACH. 

